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DocumentEconomic analysis of adaptation options toward drought-induced risk in forest: financial balance and/or carbon balance
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Forests provide ecosystem services that contribute to human well-being and reduce social vulnerability. Nowadays, the pace of changes induced by climate change is being too fast for a natural and spontaneous forest adaptation.
Drought is a natural phenomenon affecting forest productivity and health especially when its intensity is extreme. In Europe, trees are suffering from severe water shortage occurring particularly in early summer. While drought is considered as one of the main damaging abiotic risks, its induced impacts on forest health have been underestimated for a very long time due to inconspicuous damage at first sight.
In this context, forests need adaptation to reduce vulnerability to drought-induced dieback and to anticipate and cope with this increasing risk.
Different adaptation strategies were tested and combined through forest-management-based and market-based adaptations using original methods.
This thesis provided the following main results for the considered case studies and under some assumptions. First, the results proved that adaptation is relevant to face drought-induced risk of dieback: Adaptation, both forest-management-based and market-based, provides always the best scenario as opposed to the baseline or the “do-nothing” scenario from an economic perspective. Second, combining forest-management-based adaptation strategies appeared as a relevant way to adapt forests in view of a drought-induced risk of forest dieback. The combination of different strategies was therefore more beneficial for the forest owner than each strategy separately (synergy vs. additionality). However, not all adaptation options appear relevant (i.e. maladaptation). In the same vein, while forest insurance against drought-induced risk can be an option, the low gain of current contracts cannot provide enough incentive for forest owners to adopt these insurance contracts. Keywords: Adaptive and integrated management, Climate change, Research, Sustainable forest management ID: 3482552 -
ArticleThe change in forest productivity and stand-dynamics under climate change in East Asian temperate forests: A case study from South Korean forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The velocity and impact of climate change on forest appear to be site, environment, and tree species-specific.The primary objective of this research is to assess the changes in productivity of major temperate tree species in South Korea using terrestrial inventory and satellite remote sensing data. The area covered by each tree species was further categorized into either lowland forest (LLF) or high mountain forest (HMF) and investigated. We used the repeated Korean national forest inventory (NFI) data to calculate a stand-level annual increment (SAI). We then compared the SAI, a ground-based productivity measure, to MODIS net primary productivity (NPP) as a measure of productivity based on satellite imagery. In addition, the growth index of each increment core, which eliminated the effect of tree age on radial growth, was derived as an indicator of the variation of productivity by tree species over the past four decades. Based on these steps, we understand the species- and elevation-dependent dynamics. The secondary objective is to predict the forest dynamics under climate change using the Perfect Plasticity Approximation with Simple Biogeochemistry (PPA- SiBGC) model. The PPA-SiBGC is an analytically tractable model of forest dynamics, defined in terms of parameters for individual trees, including allometry, growth, and mortality. We estimated these parameters for the major species by using NFI and increment core data. We predicted forest dynamics using the following time-series metrics: Net ecosystem exchange, aboveground biomass, belowground biomass, C, soil respiration, and relative abundance. We then focus on comparing the impact of climate change on LLF and HMF. The results of our study can be used to develop climate-smart forest management strategies to ensure that both LLF and HMF continue to be resilient and continue to provide a wide range of ecosystem services in the Eastern Asian region. Keywords: mountain forests, lowland forests, increment core, national forest inventory, MODIS NPP ID: 3486900 -
ArticleDeforestation trends and impact assessment of protected area designation in the South American tri-national Atlantic forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The South-American Atlantic Forest region spans the nations of Argentina, Brazil and Paraguay. It is one of the most ecologically diverse in the world, yet one of the most vulnerable to deforestation with little research examining trends and drivers. Conservation interventions can play a critical role in protecting this forest, but the impact of their implementation remains unclear. We assessed the effects of forest protected area (FPA) designation on avoided deforestation across the Atlantic Forest region between 2000 and 2020 using the most recently available remote-sensed data in combination with geo-referenced socio-economic descriptors. Applying a pseudo-randomized approach, we quantified factors explaining establishment of FPAs and compared deforestation rates. Results show FPA designation lowered the odds of deforestation by about 14%, which is significantly higher than past assessments in other Latin American regions. Effectively, the estimated deforestation rate within FPA-designated areas (~5%) was nearly four-times lower than in non-FPA forests (19%). Future studies are needed to assess the impacts of FPAs on the socioeconomic wellbeing of forest-dependent communities across the Atlantic forest. Keywords: Deforestation and forest degradation, Financial mechanisms, Monitoring and data collection, Research, Governance ID: 3622476
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